Diuris emarginata R.Br.

Leaves 3–6, 100–200 × 3–6 mm, straight. Flower stem 300–500 mm, 3–8-flowered. Flowers 20–30 mm across, yellow with brown markings and callus outline. Dorsal sepal erect, 11–13 × 5–7 mm. Lateral sepals obliquely deflexed below labellum, 13–16 × 3–4 mm. Petals obliquely erect or often widely spreading; stalk 5–6 mm long, blackish; blade 9–12 × 6–8 mm. Labellum 11–14 mm long; lateral lobes 5–8 × 2–3 mm; midlobe convex, margins strongly downcurved, narrowly ovate when flattened, 11–13 × 6–8 mm. Callus ridges 2, 5–6 mm long, parallel.

Localised in small colonies; growing in swamps, depressions and on stream banks in moist to wet sandy-clay soils.